This program uses the 7-Zip program, including 7z.exe and 7z.dll to perform compression and encryption. 7-zip is licensed under the GNU LGPL license
The source code for 7-Zip can be found at www.7-zip.org
Encrypt: tcrypt e/encrypt [OutputFileName] -p <password> [file/dir name(s)...]
Decrypt: tcrypt d/decrypt [InputFileName] -p <password> [output path:optional]
e/encrypt [OutputFileName]: Encrypt files or directories to specified file
d/decrypt [InputFileName]: Decrypt specified .ENC file
-p/--password: Password used for encryption